A protective blade cover of a multi-rotor unmanned aerial vehicle for teaching

Abstract

The utility model relates to unmanned aerial vehicle technical field discloses a protective paddle cover of multi rotor unmanned aerial vehicle for teaching, including protective shell, the outside fixed connection of protective shell has telescopic mechanism, the one end fixed connection of telescopic mechanism is away from protective shell has the clamping block, telescopic mechanism includes telescopic post, the top sliding connection of telescopic post has the pressing block, the top fixed connection of pressing block has auxiliary block no.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a protective propeller cover for a multi-rotor UAV used for teaching. Background Technology

[0002] Multi-rotor drone learners generally suffer from insufficient operational proficiency, low precision in flight attitude control, and a lack of emergency response capabilities. They are highly susceptible to drone malfunctions, tilting, or collisions due to misoperation. The exposed, high-speed rotating propellers can not only be directly damaged or broken upon collision, but also pose safety risks such as scratches and impacts to the operator, surrounding students, and furniture and equipment in the teaching environment. On the other hand, the exposed propeller design of traditional drones prioritizes flight efficiency, and frequent propeller damage significantly increases the maintenance and replacement costs of teaching equipment. Safety hazards, in turn, can hinder the smooth conduct of teaching activities. Therefore, in order to ensure the safety of the teaching process, reduce equipment wear and tear costs, and create a safer practical training environment for learners, protective propeller covers have emerged as a targeted protective component.

[0003] The protective blade cover structure of the teaching multi-rotor UAV mainly consists of an annular frame adapted to the UAV blade mounting position, a hollow protective net covering the blade rotation area, and some lightweight reinforcing ribs designed to reduce weight.

[0004] Existing protective blade covers cannot be adapted to teaching drones with blades of different sizes. When the blades become shorter due to wear or need to be replaced with blades of different specifications, either the protection is insufficient and poses a safety hazard, or the protection range is too large and affects flight flexibility, increasing the difficulty of teaching practice and the cost of equipment adaptation. Therefore, a protective blade cover for teaching multi-rotor drones is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a protective blade cover for a multi-rotor drone used for teaching, aiming to improve the problem that the existing technology cannot adapt to blades of different sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A protective rotor cover for a teaching multi-rotor drone includes a protective shell, a telescopic mechanism fixedly connected to the outer side of the protective shell, and a locking block fixedly connected to the end of the telescopic mechanism away from the protective shell. The telescopic mechanism includes a telescopic column, one end of which is fixedly connected to the outside of the protective shell. A pressure block is slidably connected to the top of the telescopic column, and an auxiliary block is fixedly connected to the top of the pressure block. A connecting column is slidably connected to the outside of the telescopic column, one end of which is fixedly connected to the outside of the locking block. A fixing block is fixedly connected to the outside of the connecting column, and a clamping assembly is fixedly connected to the bottom of the locking block.

[0007] As a further description of the above technical solution: The clamping assembly includes two auxiliary blocks, the tops of which are fixedly connected to the bottom of the clamping block. A rotating shaft is fixedly connected to the outer side of the two auxiliary blocks, and an arc-shaped block is fixedly connected to the outer side of the rotating shaft. A screw is threadedly connected to the side of the arc-shaped block away from the rotating shaft, and a fixing plate is threadedly connected to the screw.

[0008] As a further description of the above technical solution: The fixed block is internally connected to a rotating column, and the rotating column is fixedly connected to an eccentric column.

[0009] As a further description of the above technical solution: The top of the auxiliary block is provided with a groove, and the eccentric column slides in the groove.

[0010] As a further description of the above technical solution: The pressure block is slidably connected to the inside of the fixed block, and the auxiliary block is slidably connected to the inside of the fixed block.

[0011] As a further description of the above technical solution: A rotating block is fixedly connected to the outer side of the eccentric column, and the outer side of the rotating block is slidably connected to the inner side of the fixed block.

[0012] This utility model has the following beneficial effects: 1. In this utility model, the telescopic adjustment mechanism of the protective blade cover uses a rotating block structure as the core driving component. When it is necessary to adapt to blades of different sizes, the user can rotate the rotating block to drive the pressure block structure linked to it to slide along the preset track of the cover frame. After the pressure block structure is adjusted to the target position, it is fixed by friction self-locking or locking design with the track. Compared with the fixed radius protective cover in the prior art, this structure can flexibly adapt to various specifications of teaching drone blades from short to long blades without replacing the entire cover. It not only solves the problem of poor adaptability of traditional protective covers, but also reduces the need for reserves of multiple specifications of protective covers in teaching scenarios, reduces equipment procurement and management costs, and ensures that blades of different sizes can obtain accurate protection range, taking into account both safety and flight stability.

[0013] 2. In this utility model, the connection and fixation between the protective propeller cover and the drone propeller base adopts a combination design of arc-shaped block structure and screw structure. The arc-shaped block structure is adapted to the arc contour of the drone propeller base, which can closely fit the surface of the propeller base to form a stable pre-fixation. Then, the screw structure is fastened by the pre-reserved hole structure through the arc-shaped block and the propeller base. When disassembling, it is only necessary to loosen the screw and remove the arc-shaped block to complete the separation of the protective cover. No complicated tools are required. The operation steps are simple and efficient. Compared with the existing technology that uses the fastener interference fit or integrated connection fixing method, the former is easy to damage the fastener or propeller base due to improper force during disassembly, and the latter cannot replace the protective cover component separately. This structure not only ensures the connection reliability of the protective cover during flight, but also significantly improves the convenience of installation and disassembly. It is especially suitable for the needs of frequent replacement, maintenance of protective covers or adjustment of equipment in teaching scenarios, reducing the difficulty of operation and the risk of equipment damage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a protective blade cover for a multi-rotor drone used for teaching, as proposed in this utility model. Figure 2 This is a schematic diagram of the structure of the fixing block for the protective blade cover of a multi-rotor UAV for teaching purposes proposed in this utility model; Figure 3 This is a schematic diagram of the eccentric column structure of the protective blade cover for a teaching multi-rotor UAV proposed in this utility model; Figure 4 This is a schematic diagram of the arc-shaped block of the protective propeller cover for a teaching multi-rotor UAV proposed in this utility model.

[0015] Legend: 1. Protective casing; 2. Telescopic mechanism; 21. Telescopic column; 22. Pressure block; 23. Auxiliary block one; 24. Eccentric column; 25. Rotating column; 26. Fixed block; 27. Connecting column; 28. Rotating block; 3. Block; 4. Clamping assembly; 41. Auxiliary block two; 42. Rotating shaft; 43. Arc-shaped block; 44. Fixing plate; 45. Screw. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: A protective blade cover for a multi-rotor drone used for teaching purposes, referring to Figures 1 to 3 The system includes a protective shell 1, with a telescopic mechanism 2 fixedly connected to the outside of the protective shell 1. The coverage area of ​​the protective shell 1 can be changed by adjusting the telescopic mechanism 2 to better adapt to blades of different sizes. The telescopic mechanism 2 includes a telescopic column 21, which provides basic support for the radius adjustment of the protective shell 1. One end of the telescopic column 21 is fixedly connected to the outside of the protective shell 1, so that the telescopic column 21 can drive the protective shell 1 to move synchronously to achieve radius adjustment. A pressure block 22 is slidably connected to the top of the telescopic column 21. The pressure block 22 can slide on the top of the telescopic column 21 to cooperate with the locking action. An auxiliary block 23 is fixedly connected to the top of the pressure block 22. The auxiliary block 23 can drive the pressure block 22 to move synchronously and transmit the pressure required for locking.

[0018] Specifically, when the protective blade cover is adjusted, the protective shell 1 adapts to different blades through the telescopic mechanism 2 fixed on the outside. The telescopic column 21 provides support for the adjustment and is linked with the protective shell 1. During adjustment, the two move synchronously. The pressure block 22 on the top of the telescopic column 21 slides with it, and the auxiliary block 23 on the top of the pressure block 22 moves synchronously to prepare for the subsequent transmission of locking pressure and fixation of the adjusted position.

[0019] A connecting column 27 is slidably connected to the outer side of the telescopic column 21. The telescopic column 21 can slide inside the connecting column 27, providing sliding space for radius adjustment. One end of the connecting column 27 is fixedly connected to the outer side of the locking block 3, so that the connecting column 27 and the locking block 3 form a stable connection, ensuring structural stability during adjustment. A fixing block 26 is fixedly connected to the outer side of the connecting column 27, providing a support base for the installation and rotation of the rotating column 25 and the eccentric column 24. The rotating column 25 is rotatably connected inside the fixing block 26, so that the rotating column 25 can rotate stably within the fixing block 26, driving the eccentric column 24 to move. The rotating column 25 is fixedly connected to the eccentric column 24. When the rotating column 25 rotates, it can drive the eccentric column 24 to rotate synchronously, realizing the action of squeezing or releasing the auxiliary block 23. A rotating block 28 is fixedly connected to the outer side of the eccentric column 24. By rotating the rotating block 28, the eccentric column 24 can be easily driven to rotate, simplifying the operation process.

[0020] Specifically, during adjustment, the telescopic column 21 slides inside the connecting column 27. The connecting column 27 and the locking block 3 are firmly connected to ensure structural stability. The fixing block 26 on the outside of the connecting column 27 supports the rotation of the rotating column 25. The rotating column 25 drives the eccentric column 24 to rotate synchronously. The eccentric column 24 can be easily driven by the rotating block 28 to squeeze or release the auxiliary block 23.

[0021] The outer side of the rotating block 28 is slidably connected to the inner side of the fixed block 26, making the rotating block 28 more stable when rotating within the fixed block 26 and preventing deviation. The top of the auxiliary block 23 has a groove to provide a suitable space for the sliding and pressing of the eccentric column 24. The eccentric column 24 slides in the groove to ensure that the eccentric column 24 can accurately act on the auxiliary block 23, ensuring reliable pressing and unlocking actions. The pressure block 22 is slidably connected to the inner side of the fixed block 26, so that the pressure block 22 remains stable when sliding within the fixed block 26, better transmitting pressure to lock the telescopic column 21. The auxiliary block 23 is slidably connected to the inner side of the fixed block 26, allowing the auxiliary block 23 to move smoothly within the fixed block 26, cooperating with the eccentric column 24 to complete locking and unlocking. The end of the telescopic mechanism 2 away from the protective shell 1 is fixedly connected to a locking block 3, so that the locking block 3 and the telescopic mechanism 2 form an integral whole, providing an installation base.

[0022] Specifically, the rotating block 28 rotates stably inside the fixed block 26, the groove on the top of the auxiliary block 23 allows the eccentric column 24 to slide and be precisely pressed, the pressure block 22 and the auxiliary block 23 both slide inside the fixed block 26, the auxiliary block 23 cooperates with the eccentric column 24 to complete locking and unlocking, the pressure block 22 transmits pressure to lock the telescopic column 21, and the locking block 3 and the telescopic mechanism 2 provide the installation foundation for the whole.

[0023] Reference Figure 1 and Figure 4 The bottom of the card block 3 is fixedly connected to the clamping component 4. The clamping component 4 can securely install the protective shell 1 on the drone. The clamping component 4 includes two auxiliary blocks 41, which provide symmetrical mounting support for the rotating shaft 42. The tops of the two auxiliary blocks 41 are fixedly connected to the bottom of the card block 3, so that the auxiliary blocks 41 are firmly connected to the card block 3, ensuring the structural strength of the clamping component 4. The outer sides of the two auxiliary blocks 41 are fixedly connected to the rotating shaft 42, which provides a rotation axis for the arc-shaped block 43, so that the arc-shaped block 43 can be opened and closed flexibly.

[0024] Specifically, the clamping component 4 at the bottom of the card block 3 is used to securely install the protective shell 1. It contains two auxiliary blocks 41 that are symmetrically fixed at the bottom of the card block 3 to ensure structural strength and support the rotating shaft 42. The rotating shaft 42 is fixed to the auxiliary blocks 41, providing a rotation base for the arc-shaped block 43, so that the arc-shaped block 43 can rotate flexibly around the rotating shaft 42 to complete the installation operation.

[0025] An arc-shaped block 43 is fixedly connected to the outer side of the rotating shaft 42. The arc-shaped block 43 can rotate around the rotating shaft 42 and cooperate with the clamping block 3 to form a closed structure to enclose the drone. A screw 45 is threadedly connected to the side of the arc-shaped block 43 away from the rotating shaft 42. The arc-shaped block 43 can be fixed to the fixing plate 44 by the screw 45. The fixing plate 44 is threadedly connected to the screw 45 and cooperates with the screw 45 to fix the arc-shaped block 43, ensuring that the clamping component 4 is stable and does not loosen after closing.

[0026] Specifically, the arc-shaped block 43 is fixed on the outside of the rotating shaft 42, can rotate around the rotating shaft 42 and cooperate with the card block 3 to form a closed structure to wrap the drone. The screw 45 on the side of the arc-shaped block 43 away from the rotating shaft 42 is threadedly connected to the fixing plate 44. By tightening the screw 45, the arc-shaped block 43 is fixed to ensure that the clamping component 4 is stable and does not loosen after closing.

[0027] The implementation principle of this application embodiment is as follows: When it is necessary to adjust the radius of the protective shell 1, the rotating block 28 is manually rotated to drive the eccentric column 24. The rotation center of the eccentric column 24 is not in the middle. During the rotation, the compression on the auxiliary block 23 will be released, thereby releasing the compression on the telescopic column 21 by the auxiliary block 23. At this time, after pulling the telescopic column 21 to adjust to a suitable position, the rotating block 28 is rotated in the opposite direction to drive the eccentric column 24, thereby compressing the auxiliary block 23 again. The auxiliary block 23 will compress the telescopic column 21, thereby fixing the telescopic column 21 and preventing the telescopic column 21 from sliding.

[0028] After adjusting the radius, the arc block 43 is rotated to open the closed state formed with the locking block 3, and the installation end of the drone is wrapped. Then, the arc block 43 and the locking block 3 are rotated to form a closed state. At this time, the arc block 43 and the fixing plate 44 are connected by screws 45 to form a fixation, thereby installing the protective shell 1.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective rotor cover for a multi-rotor unmanned aerial vehicle used for teaching, comprising a protective shell (1), characterized in that: The protective shell (1) is fixedly connected to a telescopic mechanism (2), and a locking block (3) is fixedly connected to one end of the telescopic mechanism (2) away from the protective shell (1). The telescopic mechanism (2) includes a telescopic column (21), one end of which is fixedly connected to the outside of the protective shell (1). A pressure block (22) is slidably connected to the top of the telescopic column (21). An auxiliary block (23) is fixedly connected to the top of the pressure block (22). A connecting column (27) is slidably connected to the outside of the telescopic column (21). One end of the connecting column (27) is fixedly connected to the outside of the locking block (3). A fixing block (26) is fixedly connected to the outside of the connecting column (27). A clamping assembly (4) is fixedly connected to the bottom of the locking block (3).

2. The protective propeller cover for a teaching multi-rotor UAV according to claim 1, characterized in that: The clamping assembly (4) includes two auxiliary blocks (41), the tops of which are fixedly connected to the bottom of the clamping block (3). A rotating shaft (42) is fixedly connected to the outer side of the two auxiliary blocks (41), and an arc-shaped block (43) is fixedly connected to the outer side of the rotating shaft (42). A screw (45) is threadedly connected to the side of the arc-shaped block (43) away from the rotating shaft (42), and a fixing plate (44) is threadedly connected to the screw (45).

3. The protective propeller cover for a teaching multi-rotor UAV according to claim 1, characterized in that: The fixed block (26) is rotatably connected to a rotating column (25), and the rotating column (25) is fixedly connected to an eccentric column (24).

4. The protective blade cover for a teaching multi-rotor UAV according to claim 3, characterized in that: The top of the auxiliary block (23) is provided with a groove, and the eccentric column (24) slides in the groove.

5. The protective rotor blade cover for a teaching multi-rotor UAV according to claim 4, characterized in that: The pressure block (22) is slidably connected to the inside of the fixed block (26), and the auxiliary block (23) is slidably connected to the inside of the fixed block (26).

6. The protective rotor blade cover for a teaching multi-rotor UAV according to claim 5, characterized in that: A rotating block (28) is fixedly connected to the outer side of the eccentric column (24), and the outer side of the rotating block (28) is slidably connected to the inner side of the fixed block (26).

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